{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:ZJDYRJGZXHRPZU2DQO6TNKABYX","short_pith_number":"pith:ZJDYRJGZ","canonical_record":{"source":{"id":"0901.1031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-01-08T12:34:00Z","cross_cats_sorted":[],"title_canon_sha256":"821d9fac190f97f64a8f75ccc9b4994ca73665e536cbffee1a15e23245db46f3","abstract_canon_sha256":"13441c045312892dfaa5337727030bde9a77fded91123511d96bed24b56f345a"},"schema_version":"1.0"},"canonical_sha256":"ca4788a4d9b9e2fcd34383bd36a801c5db582c2927a0c92f8e5f9eb44fb5872f","source":{"kind":"arxiv","id":"0901.1031","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.1031","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"arxiv_version","alias_value":"0901.1031v1","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.1031","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"pith_short_12","alias_value":"ZJDYRJGZXHRP","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"ZJDYRJGZXHRPZU2D","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"ZJDYRJGZ","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:ZJDYRJGZXHRPZU2DQO6TNKABYX","target":"record","payload":{"canonical_record":{"source":{"id":"0901.1031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-01-08T12:34:00Z","cross_cats_sorted":[],"title_canon_sha256":"821d9fac190f97f64a8f75ccc9b4994ca73665e536cbffee1a15e23245db46f3","abstract_canon_sha256":"13441c045312892dfaa5337727030bde9a77fded91123511d96bed24b56f345a"},"schema_version":"1.0"},"canonical_sha256":"ca4788a4d9b9e2fcd34383bd36a801c5db582c2927a0c92f8e5f9eb44fb5872f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:02.932863Z","signature_b64":"XSot+AUx/tv08zfyuGTbueJ4dTGa1uswVtbZaCIgBqqMoqDmzCWytPlmXAEihCBoAM0j8nLJ1nh8ptyv4KHDDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca4788a4d9b9e2fcd34383bd36a801c5db582c2927a0c92f8e5f9eb44fb5872f","last_reissued_at":"2026-05-18T02:15:02.932348Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:02.932348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0901.1031","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vdYDXvUNxWTMRKQpsj3yJiRra3+/c1lulWbF+vc7gAKpRVxc92PJRcitusrFwejKBm73jAe0O150wp0vWBhJBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:43:21.100113Z"},"content_sha256":"dc3f73c11ccbb3b616394b57d4c3d00397e568d0e7ffbaa507fa9f87ceb8c582","schema_version":"1.0","event_id":"sha256:dc3f73c11ccbb3b616394b57d4c3d00397e568d0e7ffbaa507fa9f87ceb8c582"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:ZJDYRJGZXHRPZU2DQO6TNKABYX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two Types of Magnetohydrodynamic Sheath Jets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Osamu Kaburaki","submitted_at":"2009-01-08T12:34:00Z","abstract_excerpt":"Recent observations of astrophysical jets emanating from various galactic nuclei strongly suggest that a double layered structure, or a spine-sheath structure, is likely to be their common feature. We propose that such a sheath jet structure can be formed magnetohydrodynamically within a valley of the magnetic pressures, which is formed between the peaks due to the poloidal and toroidal components, with the centrifugal force acting on the rotating sheath plasma is balanced by the hoop stress of the toroidal field. The poloidal field concentrated near the polar axis is maintained by a convergin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.1031","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i7BeEuYG2rWZ7hVrzLQtGMzg0KVItlGOj7R3B9m+ABXIyVu8efvuIaIkm+IQ9L/9VphcA1gvvtsv3srvSgjyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:43:21.100458Z"},"content_sha256":"a6ec7ec22ef2d885500b6e467114b20bc9b800a9dd7b1dd52f01fecce241bc35","schema_version":"1.0","event_id":"sha256:a6ec7ec22ef2d885500b6e467114b20bc9b800a9dd7b1dd52f01fecce241bc35"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/bundle.json","state_url":"https://pith.science/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-29T13:43:21Z","links":{"resolver":"https://pith.science/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX","bundle":"https://pith.science/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/bundle.json","state":"https://pith.science/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJDYRJGZXHRPZU2DQO6TNKABYX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ZJDYRJGZXHRPZU2DQO6TNKABYX","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"13441c045312892dfaa5337727030bde9a77fded91123511d96bed24b56f345a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-01-08T12:34:00Z","title_canon_sha256":"821d9fac190f97f64a8f75ccc9b4994ca73665e536cbffee1a15e23245db46f3"},"schema_version":"1.0","source":{"id":"0901.1031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.1031","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"arxiv_version","alias_value":"0901.1031v1","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.1031","created_at":"2026-05-18T02:15:02Z"},{"alias_kind":"pith_short_12","alias_value":"ZJDYRJGZXHRP","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"ZJDYRJGZXHRPZU2D","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"ZJDYRJGZ","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:a6ec7ec22ef2d885500b6e467114b20bc9b800a9dd7b1dd52f01fecce241bc35","target":"graph","created_at":"2026-05-18T02:15:02Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Recent observations of astrophysical jets emanating from various galactic nuclei strongly suggest that a double layered structure, or a spine-sheath structure, is likely to be their common feature. We propose that such a sheath jet structure can be formed magnetohydrodynamically within a valley of the magnetic pressures, which is formed between the peaks due to the poloidal and toroidal components, with the centrifugal force acting on the rotating sheath plasma is balanced by the hoop stress of the toroidal field. The poloidal field concentrated near the polar axis is maintained by a convergin","authors_text":"Osamu Kaburaki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-01-08T12:34:00Z","title":"Two Types of Magnetohydrodynamic Sheath Jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.1031","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:dc3f73c11ccbb3b616394b57d4c3d00397e568d0e7ffbaa507fa9f87ceb8c582","target":"record","created_at":"2026-05-18T02:15:02Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"13441c045312892dfaa5337727030bde9a77fded91123511d96bed24b56f345a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-01-08T12:34:00Z","title_canon_sha256":"821d9fac190f97f64a8f75ccc9b4994ca73665e536cbffee1a15e23245db46f3"},"schema_version":"1.0","source":{"id":"0901.1031","kind":"arxiv","version":1}},"canonical_sha256":"ca4788a4d9b9e2fcd34383bd36a801c5db582c2927a0c92f8e5f9eb44fb5872f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca4788a4d9b9e2fcd34383bd36a801c5db582c2927a0c92f8e5f9eb44fb5872f","first_computed_at":"2026-05-18T02:15:02.932348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:02.932348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XSot+AUx/tv08zfyuGTbueJ4dTGa1uswVtbZaCIgBqqMoqDmzCWytPlmXAEihCBoAM0j8nLJ1nh8ptyv4KHDDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:02.932863Z","signed_message":"canonical_sha256_bytes"},"source_id":"0901.1031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc3f73c11ccbb3b616394b57d4c3d00397e568d0e7ffbaa507fa9f87ceb8c582","sha256:a6ec7ec22ef2d885500b6e467114b20bc9b800a9dd7b1dd52f01fecce241bc35"],"state_sha256":"965b9c6da13f17e8f3b1a89c5e45a000bfe02373aee08c36fe08556efc96b809"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rh19p2yx1SVW7VE5leayNysnWOFv3eWOsGRWZxP/xU7nJRbJ4GzVx+znEs+HgZmVN/SURXBnw9DLH3Sxb20mBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T13:43:21.102252Z","bundle_sha256":"84724deec835ed3bed5e7425668b1c8ea4dbf4bd805598b3ef7239e2289b3619"}}